9r-12-16=

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Solution for 9r-12-16= equation:


Simplifying
9r + -12 + -16 = 0

Reorder the terms:
-12 + -16 + 9r = 0

Combine like terms: -12 + -16 = -28
-28 + 9r = 0

Solving
-28 + 9r = 0

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '28' to each side of the equation.
-28 + 28 + 9r = 0 + 28

Combine like terms: -28 + 28 = 0
0 + 9r = 0 + 28
9r = 0 + 28

Combine like terms: 0 + 28 = 28
9r = 28

Divide each side by '9'.
r = 3.111111111

Simplifying
r = 3.111111111

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